Device for supporting pivot-pins in couplings.



PATENTED MAR. 21, 1905.

C. A. TOWER. DEVICE FOR SUPPORTING PIVOT PINS IN COUPLINGS.

APPLICATION FILED NOV. 80, 1904.

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UNITED STATES Patented March 21, 1905.

PATENT OEEIcE.

CLINTON A. TOWER, OF CLEVELAND, OHIO, ASSIGNOR TO THE NATIONAL MALLEABLECASTINGS COMPANY, OF CLEVELAND, OHIO, A CORPORA- TION OF OHIO.

DEVICE FOR SUPPORTING PIVOT-PINS IN COUPLINGS.

SPECIFICATION forming part of Letters Patent N 0. 785,698, dated March21, 1905.

Application filed November 30, 1904:. Serial No. 234,896.

To roll whmw it may cmwern:

Be it known that I, CLINTON A. Towns, of Cleveland, Cuyahoga county,Ohio, have invented a new and useful Device for Support- 3 ingPivot-Pins in Couplers, of which the following is a full, clear, andexact description, reference being had to the accompanying drawings,forming part of this specification, in which Figure 1 shows in bottomplan view a coupler having a pin-retaining device constructed inaccordance with my invention. Fig. 2 is a vertical section on the lineII II of Fig. 1, and Fig. 3 is an elevation partly in section.

5 The purpose of my invention is to provide means for holding thepivot-pin of a couplerknuckle in place, so that even if the pin shouldbreak its lower part cannot drop out of the pin-hole, thus putting thewhole strain upon the upper lug of the coupler-head. To this end I use apin 2, which, as shown in Fig. 2, may be constructed without a head andis of such length that when set in the coupler its upper end shall beflush with the top of the 5 coupler-head. 3 is the knuckle which is heldby the pin. In the lower lug of the couplerhead the pin-hole ispreferably enlarged, as

at 4, for purposes described in my prior patent, No. 735,000, dated July28, 1903. Below 3 the enlargement 4 the pivot-hole is contractedsomewhat, as at 5, so as to form supports for the end of the pivot-pin,and the coupler-head is traversed by a slot 6, which, as shown in Figs.1 and 2, extends transversely across the pin-hole and extends also tothe bottom of the lower lug of the coupler-head. This slot atfords aspace in which a cotter 7 can be inserted through the pivot-pin, so asto prevent the pin from creeping upwardly, and the slot gives freeaccess to the pin-hole and by ex- 4 tending upwardly from the lowersurface or the bottom lug of the coupler-head renders the coring verysimple when the molding is done.

I claim as my invention 1. Means for supporting a pivot-pin of acoupler-knuckle, consisting in a coupler having a pin-hole and in thelower lug of the coupler a transverse slot extending through thepin-hole, and extending also to the bottom 5 of the lug; substantiallyas described.

2. Means for supporting a pivot-pin of a coupler-knuckle, consisting ina coupler having a pin-hole and in the lower lug of the coupler atransverse slot extending through the pin-hole, and extending also tothe bottom of the lug, and a cotter which is inserted through the pin insaid slot; substantially as described.

In testimony whereof have hereunto set l my hand.

CLINTON A. TOW ER.

Witnesses:

HENRY F. POPE, HARRY E. ORR.

